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Trail Sisters Half Marathon & 10k

Registration Is Open!
Home Page Retreats
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Home Page Lake Sonoma

Run with Her Retreats

May 15th – 18th • Chattanooga, Tennessee – 3 spots left (shared double queen rooms only)!

June 5th – 8th • Boulder, Colorado – Single king and shared double queen rooms available.

July 31st – August 3rd • Boulder, Colorado – Single king and shared double queen rooms available.

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Chuckant 50k Finish

Ask TS: First 50k

What’s your best advice for someone training for their first 50k? How do you balance building up a base for long distance mileage, while also getting enough rest? Madeline Harms: All of this really depends on

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Team Trail Sisters
All women are welcome and invited to join! Together, we are a movement driving opportunity and inspiration to all women on the trails.

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Resources

Providing tools for success on the trails is important. Find a coach through our coaching directory, get inspired with a film, or find a Trail Sisters Approved Race!

Team Trail Sisters

Any and all women are invited to join Team Trail Sisters! Special access to team kits and apparel, Speaker Series webinars, partner discounts, team newsie and communities group, and special meet-up events! Join the team today!

Community

The Trail Sisters Community provides a way to connect with other Trail Sisters, Join Local Groups, learn from educational courses & more!

Events

Check out a Run With Her Retreat, the Women’s Trail Half Marathon or come run a Marathon or 50 Mile with us in wine country!

Race Calendar

Home Page Lake Sonoma
Lake Sonoma Relentless
50M
26.2M
13.1M
April 12, 2025
Healdsburg
, California
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Sinks Canyon Trail Races
50K
18K
6K
June 7, 2025
Lander
, Wyoming
Banana-Slug-Backyard-Ultra-2024-0311-A
Banana Slug Backyard Ultra
Loops
April 25, 2025
Donald
, Oregon
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Trail Sisters Women's Trail Half-Marathon
13.1M
September 13, 2025
Buena Vista
, Colorado
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Catalina St. Park 50-Year 9.3 Mile Trail Race and Easy 5k
9.3M
5K
September 21, 2025
Tucson
, Arizona

Local Groups

Journal

Chuckant 50k Finish
Trail Sisters

Ask TS: First 50k

What’s your best advice for someone training for their first 50k? How do you balance building up a base for long distance mileage, while also

Trail Sisters

Ask TS: Hydration Vests

I’m totally new to trail running, although I’ve run a few marathons. I’d like to understand a bit more about the gear needed for trail

Adventure
Johanna Dehning

Trekking to Transformation

Hi! I’m Johanna from Germany. For 2 years now, I live in a small village in the Indian Himalayas at an altitude of 2,300 meters. Every day, I trek through the mountains – either on my own or as a trekking guide, leading travellers from around the world through breathtaking trails.

Contributors

Zoë Rom

Johanna Dehning

Angela Millet

Tricia McFadden

Sarah Prentice Mitchell

Christina Mather

Sara Manderscheid

Marybeth Bohn

Katharine Moustakes

Vibhu Krishna